My condo is less than 3 years old. I moved in when it was brand new. I'm a very careful person and always use cooling racks on my arborite (matte finish) counter tops. An area about 8 - 10 inches on the "island" is very dull. I've tried vinegar-water; Mr.Clean, and a few other cleaners to bring up the colour but no luck! Does anyone know of a product (homemade or otherwise) that might help. It's a beigy mottled effect pattern. Thanks for a very helpful Newsletter.